In a recent speech, Obama maligned climate skeptics by accusing them of being members of the Flat Earth Society:

We don’t have time for a meeting of the Flat Earth Society … Sticking your head in the sand might make you feel safer, but it’s not going to protect you from the coming storm.

Ironically, the president of the Flat Earth Society (a real organization), is a firm adherent to the theory of anthropological global warming. According to Salon,

[P]resident Daniel Shenton said that while he “can’t speak for the Society as a whole regarding climate change,” he personally thinks the evidence suggests fossil fuel usage is contributing to global warming.

If support from the Flat Earth Society discredits a theory, as Obama suggests, then once again he finds himself on the wrong side of the debate.